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Showing posts from September, 2013

Turbo Boost: Zero pt. 3

After tearing into the engine (removed hood, various piping, intake manifold) I saw what was causing the problem.  The issue was in fact the actuator on the turbo.  Specifically, the circlip that holds the actuator on to the vane lever had broken/fallen off, and the whole assembly was wedged together.  I went to the auto parts store and bought a kit with a bunch of spare parts including assorted circlips - one of which fit. The assembly seems to move quite easily and there is no rust or dirt, so I think there is no point in going any further.  I tested the actuator with a vacuum pump and it seemed to be fine.  I did notice some loss but I'm hoping that doesn't matter.  I tried to make a better seal around the actuator vacuum port by using a larger piece of rubber hose and a hose clamp. I am almost done putting the car back together, but I did notice that I seem to have lost two bolts out of the intake manifold.  I called the dealership and, of course, they don't stock i

Turbo Boost Zero: pt. 2

I got underneath the car and pulled the vacuum hose off the VNT (turbo) actuator.  I hooked up a hand vacuum pump with a gauge on it and put some vacuum on it.  The vacuum wouldn't really hold very long, either because the vacuum pump hose or the actuator leaked, but that wasn't really here nor there - I did manage to get well over 10 inches of vacuum plenty of times and the actuator didn't even think of moving.  I tried to move the assembly with my hand and the thing was frozen stiff. The turbo actuator with the hose off So I've pretty much come to the conclusion that either the actuator is frozen, the vanes or frozen, or/and the actuator is screwed.  Furthermore, I think the easiest way to deal with it is to try to get the turbo off.  Then I can fix it whatever way I need to, or even replace the turbo if need be (and if I can find another one I can afford).

Turbo Boost Zero

I've got a bunch of half-written blog posts in the can waiting to be finished and released.  Had a really busy summer, and NOT without it's car and e-bike issues.  I'll get them out eventually. Wanted to give a play by play of this one.  Yesterday I was driving up the big hill in Randolph in my 2002 VW Golf TDI, and my turbo boost went out.  I tried stopping/restarting the car (which has worked in the few times in the past) but... nothing at all.  So whatever is is pretty shot.  As far as I can tell, the car has absolutely no turbo boost at all (I can hear no whistling and feel very little power).  The car is technically drive-able but has a hard time keeping up with traffic.  Reminds me of my old '81 diesel rabbit (NA). I pulled the codes when I got home, and (among the massive list of other known issues) I saw a new one: 17964 - Charge Pressure Control             P1556 - 35-00 - Negative Deviation So at this point I'm thinking that it's one of the fo